CN119503950B - Microwave synchronous dielectric perforation and electrodeless ultraviolet continuous running water disinfection device and method - Google Patents
Microwave synchronous dielectric perforation and electrodeless ultraviolet continuous running water disinfection device and method Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 38
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 101
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- 230000002195 synergetic effect Effects 0.000 claims abstract description 12
- 230000005684 electric field Effects 0.000 claims description 67
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- 230000001105 regulatory effect Effects 0.000 claims description 2
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- 238000004520 electroporation Methods 0.000 abstract description 28
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
- C02F1/325—Irradiation devices or lamp constructions
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/302—Treatment of water, waste water, or sewage by irradiation with microwaves
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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Abstract
本发明属于水处理及废水处理技术领域，提供了微波同步介导电穿孔与无极紫外连续流水消毒装置及方法。所述连续流水消毒装置包括无极紫外灯管、微波源、风冷装置、单脊波导、灯罩以及石英水管；单脊波导包括单脊谐振腔，单脊谐振腔的底部设有向上突起的矩形脊，单脊谐振腔的顶部设有条状缝隙；无极紫外灯管沿着条状缝隙设置，石英水管贯穿单脊谐振腔设置，将石英水管处于单脊谐振腔内的部分记作消毒段，消毒段位于矩形脊的上方且位于无极紫外灯管的辐照范围内；微波源通过同轴电缆经波导同轴转换器和阻抗变换器将微波馈入单脊谐振腔中。本发明可实现对连续流水体的电穿孔效应和紫外线的协同消毒，强化现有技术的水消毒效果。
The present invention belongs to the technical field of water treatment and wastewater treatment, and provides a microwave synchronously mediated electroporation and electrodeless ultraviolet continuous water flow disinfection device and method. The continuous water flow disinfection device includes an electrodeless ultraviolet lamp, a microwave source, an air cooling device, a single-ridge waveguide, a lampshade and a quartz water pipe; the single-ridge waveguide includes a single-ridge resonant cavity, the bottom of the single-ridge resonant cavity is provided with an upwardly protruding rectangular ridge, and the top of the single-ridge resonant cavity is provided with a strip-shaped gap; the electrodeless ultraviolet lamp is arranged along the strip-shaped gap, and the quartz water pipe runs through the single-ridge resonant cavity. The part of the quartz water pipe in the single-ridge resonant cavity is recorded as a disinfection section, and the disinfection section is located above the rectangular ridge and within the irradiation range of the electrodeless ultraviolet lamp; the microwave source feeds microwaves into the single-ridge resonant cavity through a coaxial cable, a waveguide coaxial converter and an impedance converter. The present invention can achieve the synergistic disinfection of the electroporation effect and ultraviolet rays on the continuous flow water body, and enhance the water disinfection effect of the prior art.
Description
Technical Field
The invention belongs to the technical field of water treatment and wastewater treatment, and relates to a microwave synchronous dielectric perforation and electrodeless ultraviolet continuous running water disinfection device and method.
Background
The disinfection is a necessary process for guaranteeing the water quality safety, is an important link of water treatment and wastewater treatment, and the current method for water disinfection mainly comprises chemical disinfectant disinfection and physical means disinfection. Chemical disinfectants include chlorine, ozone, etc., which can generate carcinogenic disinfection byproducts during the water disinfection process and can adversely affect the health and ecological safety of the human body. Physical disinfection processes such as ultraviolet rays and electroporation are widely applied to the field of water disinfection because of better safety.
Microwave electrodeless ultraviolet disinfection is a physical water disinfection technology which is widely focused, and under the excitation of high-frequency electromagnetic waves, gas filled in a lamp tube of an electrodeless ultraviolet lamp is discharged, so that electrons collide with gas atoms and the energy level of the gas atoms is improved, and ultraviolet rays are generated to kill microorganisms in water. Compared with the traditional extreme ultraviolet lamps such as a low-pressure mercury lamp, the microwave electrodeless ultraviolet lamp has no electrode aging problem, and the microwave electrodeless ultraviolet lamp is utilized for water disinfection, so that the microwave electrodeless ultraviolet lamp has the characteristics of high stability, long service life of the ultraviolet lamp, high treatment efficiency and the like. However, the lack of continuous disinfection capability of ultraviolet rays alone, the easy light reactivation of microorganisms in water after ultraviolet rays irradiation is a technical bottleneck of current ultraviolet water disinfection, and microorganisms are also easy to generate tolerance to ultraviolet rays.
Electroporation sterilization is another physical water sterilization technique other than ultraviolet sterilization, including reversible electroporation and irreversible electroporation. Electroporation relies on strong electric fields to destroy external structures of pathogens, such as bacterial cell membranes and viral capsids. When the applied electric field strength is lower than the electric field threshold of the cell membrane, reversible electroporation of the cells of the bacteria occurs, which allows the cells to repair the phospholipid bilayer and restore normal function, and when the applied electric field strength is higher than the electric field threshold of the cell membrane, permanent permeation of the cell membrane of the bacteria occurs, the cells cannot be repaired, and finally the cells die due to the loss of the balance between the inside and the outside of the cells. Unlike ultraviolet sterilization, electroporation sterilization does not result in tolerance by microorganisms. The electroporation disinfection technology widely applied at present is high-voltage pulse disinfection, and is usually carried out under the conditions that a pulse electric field is 12-100 kV/cm and pulse time is microsecond, and has the defects of high energy consumption, large equipment volume and the like, and is difficult to be suitable for continuous water disinfection treatment.
The existing microwave electrodeless ultraviolet water disinfection device is characterized in that an electrodeless ultraviolet lamp tube is arranged in a rectangular microwave resonant cavity, ultraviolet rays are generated by exciting the electrodeless ultraviolet lamp tube by microwaves to disinfect water, but in the process, the electric field intensity in the rectangular microwave resonant cavity cannot reach the level of electroporation effect, so that the electroporation disinfection effect cannot be generated by microwaves. Meanwhile, the existing microwave electrodeless ultraviolet disinfection device based on the rectangular microwave resonant cavity needs a high-power microwave source to feed in to generate ultraviolet rays, so that the problem of overhigh water disinfection energy consumption exists, and the reduction of water disinfection cost is not facilitated. Therefore, how to solve the problems of low microwave energy utilization efficiency and easy microbial light reactivation existing in the existing ultraviolet water disinfection device, and the problems that the high-pressure pulse disinfection technology is unfavorable for the reduction of water disinfection cost and the realization of continuous water disinfection is difficult, is a great difficulty in the field of water disinfection.
Disclosure of Invention
Aiming at the problems that the existing ultraviolet water disinfection device cannot utilize microwaves to generate electroporation effect, microorganisms are easy to generate light reviving and high in energy consumption, and the existing high-pressure pulse disinfection technology is difficult to be used for continuous water disinfection, the invention provides a microwave synchronous dielectric electroporation and electrodeless ultraviolet continuous flow water disinfection device and method, so that the electroporation effect and ultraviolet synergistic disinfection of continuous flow water bodies are realized, and the water disinfection effect of the prior art is enhanced.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a microwave synchronous dielectric perforation and electrodeless ultraviolet continuous flow water disinfection device comprises an electrodeless ultraviolet lamp tube, a microwave source, an air cooling device, a single-ridge waveguide, a lampshade and a quartz water tube;
the single-ridge waveguide comprises a waveguide coaxial converter, an impedance converter, a single-ridge resonant cavity and an adjustable short-circuit surface, wherein a rectangular ridge protruding upwards is arranged at the bottom of the single-ridge resonant cavity, a strip-shaped gap is arranged at the top of the single-ridge resonant cavity, the strip-shaped gap and the rectangular ridge are both arranged along the length direction of the single-ridge resonant cavity, and the adjustable short-circuit surface is arranged at the termination end of the single-ridge resonant cavity;
The electrodeless ultraviolet lamp tube is arranged along the strip-shaped gap, the quartz water tube penetrates through the single-ridge resonant cavity, the water inlet and the water outlet of the quartz water tube are positioned outside the single-ridge resonant cavity, the part of the quartz water tube positioned in the single-ridge resonant cavity is marked as a disinfection section, the disinfection section is positioned above the rectangular ridge and positioned in the irradiation range of the electrodeless ultraviolet lamp tube, the lampshade is covered outside the electrodeless ultraviolet lamp tube to enable the electrodeless ultraviolet lamp tube to be positioned in a space formed by the lampshade and the single-ridge resonant cavity, one end of the lampshade is connected with the air cooling device, and the other end of the lampshade is provided with an air outlet;
The microwave source feeds microwaves into the single-ridge resonant cavity through the waveguide coaxial converter and the impedance transformer by a coaxial cable.
In the technical scheme of the continuous flow water disinfection device, the electromagnetic field mode of the single-ridge waveguide is similar to that of the rectangular waveguide, and the difference is that the electromagnetic wave is restrained in the vicinity of the rectangular ridge of the single-ridge resonant cavity of the single-ridge waveguide due to disturbance of field distribution caused by edge effect, so that the electric field intensity in the single-ridge resonant cavity, particularly the electric field intensity in the vicinity of the rectangular ridge of the single-ridge resonant cavity, can be effectively increased. Therefore, the disinfection section of the quartz tube is preferably located directly above the rectangular ridge so that the disinfection section of the quartz tube is located in the region of the single ridge cavity where the electric field strength is high.
According to the technical scheme of the continuous running water disinfection device, when the adjustable short-circuit surface is controlled to move along the length direction of the single-ridge resonant cavity, the phase of microwaves in the single-ridge resonant cavity can be adjusted, and then the electric field distribution in the single-ridge resonant cavity is adjusted, so that the electric field intensity of most of the space of the disinfection section of the quartz water pipe exceeds 10 5 V/m under the condition of starting the microwave source. For example, by adjusting the adjustable short-circuit surface, the electric field strength of at least 50% of the space of the disinfection section of the quartz water tube can exceed 10 5 V/m under the condition of starting the microwave source.
In the technical scheme of the continuous flow water disinfection device, in order to reduce microwave leakage and improve microwave utilization efficiency, the ratio of the width of the strip-shaped gap to the diameter of the electrodeless ultraviolet lamp tube is preferably (0.4-1.2): 1, and further, the electrodeless ultraviolet lamp tube is preferably arranged outside the single-ridge resonant cavity and partially embedded into the strip-shaped gap. The electrodeless ultraviolet lamp tube can be partially embedded into the strip-shaped gap through the support of the support frame.
In the technical scheme of the continuous running water disinfection device, the ratio of the width of the rectangular ridge to the width of the single ridge resonant cavity is preferably (0.3-0.5): 1, and the ratio of the height of the rectangular ridge to the height of the single ridge resonant cavity is preferably (0.2-0.4): 1.
In the technical scheme of the continuous flow water disinfection device, the disinfection section of the quartz water pipe is a straight pipe or a coiled pipe. When the disinfection section of the quartz water pipe is a straight pipe, the inner diameter of the straight pipe is preferably not more than the width of the rectangular ridge of the single-ridge resonant cavity, and when the disinfection section of the quartz water pipe is a coiled pipe, the spiral diameter of the coiled pipe (the size of the widest part of the spiral of the coiled pipe) is preferably not more than the width of the rectangular ridge of the single-ridge resonant cavity. Compared with a straight pipe, the coiled pipe can increase the residence time of water flow in the single-ridge resonant cavity, strengthen the water disinfection effect, and in practical application, the structural form of the disinfection section of the quartz water pipe can be selected according to specific water disinfection requirements.
In the technical scheme of the continuous flow water disinfection device, the inner wall of the lampshade is provided with the ultraviolet reflection material coating layer, and the ultraviolet reflection coating layer is used for reflecting ultraviolet rays emitted by the electrodeless ultraviolet lamp tube back into the single-ridge resonant cavity. The ultraviolet ray reflection material coating arranged on the inner wall of the lampshade can reflect ultraviolet rays, so that the utilization rate of the ultraviolet rays can be increased, the corrosion resistance and the stability of the inner wall of the lampshade can be improved, and the effect of protecting the lampshade is achieved. The material of the ultraviolet reflecting material coating layer is the existing ultraviolet reflecting material, for example, titanium powder with the main component of TiO 2. The material of the lamp cover is preferably a corrosion-resistant and heat-resistant material, and may be, for example, metal, alloy, or the like.
In the technical scheme of the continuous flow water disinfection device, the lamp shade is detachably covered outside the electrodeless ultraviolet lamp tube, and the electrodeless ultraviolet lamp tube is not completely embedded into the single-ridge resonant cavity.
In the technical scheme of the continuous flow water disinfection device, in order to enable the disinfection section of the quartz water pipe to fully receive the irradiation of ultraviolet rays, the strip-shaped gap is preferably arranged right above the rectangular ridge.
In the technical scheme of the continuous flow water disinfection device, the length of the electrodeless ultraviolet lamp tube is preferably consistent with the length of the strip-shaped gap, the length of the strip-shaped gap does not exceed the length of the single-ridge resonant cavity, and the length of the strip-shaped gap is preferably equal to the length of the single-ridge resonant cavity.
In the technical scheme of the continuous flow water disinfection device, the length of the single-ridge resonant cavity is at least 15 cm, for example, the length of the single-ridge resonant cavity can be 15-200 cm.
In the technical scheme of the continuous flow water disinfection device, the microwave source is a solid-state microwave source, and the power of the microwave source can be generally 50-1000W.
In the technical scheme of the continuous running water disinfection device, the water inlet of the quartz water pipe is connected with the water inlet pump through the control valve, and water to be disinfected is input into the quartz water pipe through the water inlet pump.
In the technical scheme of the continuous flow water disinfection device, the air cooling device is arranged to cool the electrodeless ultraviolet lamp tube, so that the problem of light power reduction caused by overhigh temperature of the electrodeless ultraviolet lamp tube is avoided, and the air cooling device can be a fan, a blower and the like.
Based on the microwave synchronous dielectric perforation and electrodeless ultraviolet continuous flow disinfection device, the invention also provides a microwave synchronous dielectric perforation and electrodeless ultraviolet continuous flow disinfection method, which uses the microwave synchronous dielectric perforation and electrodeless ultraviolet continuous flow disinfection device and comprises the following steps:
The microwave source and the air cooling device of the microwave synchronous dielectric perforation and electrodeless ultraviolet continuous flow water disinfection device are started, the electric field distribution in the single-ridge resonant cavity is regulated through the adjustable short circuit surface, so that the electric field intensity of at least 50% of the space of the disinfection section of the quartz water pipe exceeds 10 5 V/m, the microwave in the single-ridge resonant cavity excites the electrodeless ultraviolet lamp tube to generate ultraviolet rays, a water body to be disinfected is continuously introduced into the quartz water pipe through the water inlet and is continuously discharged through the water outlet, and when the water body flows through the disinfection section of the quartz water pipe, the electric field and the ultraviolet rays with the intensity higher than 10 5 V/m in the area of the single-ridge resonant cavity generate electroporation-ultraviolet synergistic disinfection effect on the water body.
In the technical scheme of the continuous flow water disinfection method, in order to ensure the disinfection effect on the water body, the flow rate of the water body in the quartz water pipe is preferably controlled to be not more than 200 mL/min, for example, the flow rate of the water body in the quartz water pipe can be controlled to be 50-200 mL/min.
In the technical scheme of the continuous running water disinfection method, in order to strengthen the disinfection effect on the water body, the water outlet of the quartz water pipe can be circulated to the water inlet of the quartz water pipe, and the water body can be disinfected in a plurality of circulation modes. In practical application, whether repeated cyclic disinfection and the cyclic times of the cyclic disinfection are needed can be determined according to the types and the contents of microorganisms in the water body to be disinfected and other factors.
In the technical scheme of the continuous flow water disinfection method, the temperature of the electrodeless ultraviolet lamp tube is kept below 45 ℃ by adjusting the air quantity of the air cooling device in the water disinfection process, so that the problem that the light power of the electrodeless ultraviolet lamp tube is reduced due to overhigh temperature is avoided.
The main technical conception of the invention is as follows:
According to the invention, the structure of the microwave resonant cavity of the traditional microwave electrodeless ultraviolet lamp is changed into the single-ridge resonant cavity, the change of the setting position of the electrodeless ultraviolet lamp tube is matched, and the quartz water pipe is arranged in the single-ridge resonant cavity, so that the coupling of the electroporation effect and the ultraviolet disinfection effect is realized. Specifically, by arranging the single-ridge resonant cavity, the electromagnetic wave is bound near the rectangular ridge of the single-ridge resonant cavity by utilizing the edge effect, so that the electric field intensity in the single-ridge resonant cavity is effectively increased, and particularly, a high-intensity electric field is generated near the rectangular ridge of the single-ridge resonant cavity. On the basis, the electric field intensity of most areas of the disinfection section of the quartz water pipe exceeds 10 5 V/m by arranging the disinfection section of the quartz water pipe above the rectangular ridge in the single-ridge resonant cavity. Meanwhile, a strip-shaped gap is formed above the rectangular ridge of the single-ridge resonant cavity, and the electrodeless ultraviolet lamp tube is arranged at the strip-shaped gap, so that microwaves in the single-ridge resonant cavity excite the electrodeless ultraviolet lamp tube to generate ultraviolet rays. Through the combination of the technical means, the disinfection section of the quartz water pipe is simultaneously in ultraviolet irradiation and high-intensity electric field environments, when the water body to be disinfected is introduced into the quartz water pipe, microorganisms in the water body to be disinfected can be subjected to the electroporation effect of the high-intensity electric field and the ultraviolet irradiation disinfection effect at the same time, the transmittance of the microorganisms to ultraviolet rays can be increased after electroporation, the killing power of the ultraviolet rays to the microorganisms is increased, and the electroporation-ultraviolet ray synergistic disinfection effect is generated, so that the problem that the microorganisms are easy to revive by adopting independent ultraviolet ray disinfection in the prior art is solved.
Compared with the prior art, the technical scheme provided by the invention has the following beneficial technical effects:
1. The invention provides a microwave synchronous dielectric perforation and electrodeless ultraviolet continuous flow water disinfection device, which realizes the effective coupling of electroporation effect and ultraviolet disinfection effect by the cooperation of technical means such as the change of the structure of a microwave resonant cavity, the adjustment of the setting position of an electrodeless ultraviolet lamp tube, the setting of a quartz water tube in a high-strength electric field area in the microwave resonant cavity and the like. The method comprises the steps of binding electromagnetic waves near rectangular ridges of a single-ridge resonant cavity by utilizing the edge effect of the single-ridge waveguide, effectively increasing the electric field intensity in the single-ridge resonant cavity, arranging a disinfection section of a quartz water pipe above the rectangular ridges in the single-ridge resonant cavity, enabling the electric field intensity of most areas of the disinfection section of the quartz water pipe to be higher than the electric field intensity level capable of achieving electroporation effect, arranging strip-shaped gaps above the rectangular ridges of the single-ridge resonant cavity, arranging electrodeless ultraviolet lamp tubes at the strip-shaped gaps, and exciting the electrodeless ultraviolet lamp tubes by utilizing microwaves in the single-ridge resonant cavity to generate ultraviolet rays. Through the mutual cooperation of the technical means, the disinfection section of the quartz water pipe is simultaneously in the environment of ultraviolet irradiation and high-strength electric field, so that the electroporation-ultraviolet synergistic disinfection effect is generated. Compared with the existing ultraviolet water disinfection device, the invention increases the transmittance of microorganisms to ultraviolet rays by utilizing electroporation efficiency, improves the sensitivity of the microorganisms to the ultraviolet rays, can strengthen the killing power of the ultraviolet rays to the microorganisms, and avoids the problem of light reviving of the microorganisms after ultraviolet sterilization. Compared with the existing high-voltage pulse electroporation sterilization device, the water sterilization device has the advantages of lower energy consumption, smaller equipment, suitability for continuous water sterilization treatment and lower water sterilization cost.
2. Based on the microwave synchronous dielectric perforation and electrodeless ultraviolet continuous flow disinfection device, the invention also provides a microwave synchronous dielectric perforation and electrodeless ultraviolet continuous flow disinfection method, which realizes the disinfection of continuous flow water body through the synergistic effect of electroporation effect and ultraviolet rays, can solve the problem that microorganism reactivation easily occurs in a single ultraviolet disinfection method, can also solve the problem that the existing high-voltage pulse electroporation disinfection method is difficult to be used for continuous water disinfection, and has wide application prospect in the field of water disinfection.
Drawings
FIG. 1 is a schematic diagram of a microwave synchronous dielectric perforation and electrodeless ultraviolet continuous flow disinfection device according to the present invention.
Fig. 2 is a longitudinal section of the device of fig. 1.
Fig. 3 is a cross-sectional view of the device of fig. 1 in the middle of a single-ridge cavity.
FIG. 4 is a graph of the electric field distribution in a single resonator simulated in COMSOL software when the tunable stub is 5mm a from the end of the termination of the single-ridge resonator.
FIG. 5 is a graph of the electric field distribution in a single resonator simulated in COMSOL software when the tunable stub is 15 mm a from the end of the termination of the single-ridge resonator.
FIG. 6 is a graph of the electric field distribution in a single resonator simulated in COMSOL software when the tunable stub is 25 mm a from the end of the termination of the single-ridge resonator.
FIG. 7 is a graph of the electric field distribution in a single resonator simulated in COMSOL software when the tunable stub is 35 mm from the end of the termination of the single-ridge resonator.
FIG. 8 is an electric field distribution diagram within a rectangular resonator simulated in COMSOL software.
In the figures 1-3, 1 is an electrodeless ultraviolet lamp tube, 2 is a microwave source, 3 is a single-ridge waveguide, 4 is a single-ridge resonant cavity, 5 is a strip gap, 6 is a rectangular ridge, 7 is a lampshade, 8 is a quartz water pipe, 9 is a water inlet, 10 is a water outlet, 11 is an adjustable short road surface, 12 is an air cooling device, 13 is a supporting frame, and 14 is a coaxial cable.
Detailed Description
The microwave synchronous dielectric perforation and electrodeless ultraviolet continuous running water disinfection device and method provided by the invention are further described by the following embodiments. It is to be noted that the following examples are given solely for the purpose of illustration and are not to be construed as limitations on the scope of the invention, since numerous insubstantial modifications and variations of the invention will become apparent to those skilled in the art in light of the above disclosure, and yet remain within the scope of the invention.
In the following embodiments, the electrodeless ultraviolet lamp tube, the solid-state microwave source, the waveguide coaxial converter, the impedance converter, the coaxial cable and the adjustable short-circuit surface are all commercially available, and the single-ridge resonant cavity, the lamp shade and the quartz water pipe with the strip-shaped gap at the top are custom-manufactured.
Example 1
In this embodiment, the microwave synchronous dielectric perforation and electrodeless ultraviolet continuous flow water disinfection device provided by the invention has a structure schematically shown in fig. 1-3, and comprises an electrodeless ultraviolet lamp tube 1, a microwave source 2, an air cooling device 12, a single-ridge waveguide 3, a lampshade 7 and a quartz water tube 8.
The single-ridge waveguide 3 comprises a waveguide coaxial converter, an impedance converter, a single-ridge resonant cavity 4 and an adjustable short-circuit surface 11, wherein a rectangular ridge 6 protruding upwards is arranged at the bottom of the single-ridge resonant cavity 4, a strip-shaped gap 5 is arranged at the top of the single-ridge resonant cavity 4, the strip-shaped gap 5 and the rectangular ridge 6 are both arranged along the length direction of the single-ridge resonant cavity 4, the strip-shaped gap 5 is positioned right above the rectangular ridge 6, the length of the strip-shaped gap 5 is equal to the length of the single-ridge resonant cavity 4, the ratio of the width of the rectangular ridge 6 to the width of the single-ridge resonant cavity 4 is 0.3:1, and the ratio of the height of the single-ridge resonant cavity 4 of the rectangular ridge 6 is 0.2:1. The tunable shorting plane 11 is disposed at the termination end of the single-ridge cavity 4.
The ratio of the width of the strip gap 5 to the diameter of the electrodeless ultraviolet lamp tube 1 is 1.2:1, the electrodeless ultraviolet lamp tube 1 is arranged along the strip gap 5, the electrodeless ultraviolet lamp tube 1 is positioned outside the single-ridge resonant cavity 4, the electrodeless ultraviolet lamp tube 1 is partially embedded into the strip gap 5 through the support of the support frame 13, the length of the electrodeless ultraviolet lamp tube 1 is consistent with the length of the strip gap 5, more specifically, the diameter of the electrodeless ultraviolet lamp tube 1 is 15 mm, and the length of the electrodeless ultraviolet lamp tube 1 is 15 cm. The quartz water pipe 8 penetrates through the single-ridge resonant cavity 4, the water inlet 9 and the water outlet 10 of the quartz water pipe 8 are positioned outside the single-ridge resonant cavity 4, the part of the quartz water pipe 8 in the single-ridge resonant cavity 4 is marked as a disinfection section, the disinfection section of the quartz water pipe 8 is positioned right above the rectangular ridge 6 and right below the electrodeless ultraviolet lamp tube 1, the disinfection section of the quartz water pipe 8 is positioned in the irradiation range of the electrodeless ultraviolet lamp tube 1, the disinfection section of the quartz water pipe 8 is a straight pipe, the inner diameter of the disinfection section of the quartz water pipe 8 is equal to the width of the rectangular ridge 6, and the inner diameter of the whole quartz water pipe 8 is 2 cm. The water inlet 9 of the quartz water pipe 8 is connected with a water inlet pump through a control valve, and water to be disinfected is input into the quartz water pipe 8 through the water inlet pump.
The lamp shade 7 is detachably covered outside the electrodeless ultraviolet lamp tube 1, so that the electrodeless ultraviolet lamp tube 1 is positioned in a space formed by the lamp shade 7 and the single-ridge resonant cavity 4, one end of the lamp shade 7 is connected with the air cooling device 12, and the other end of the lamp shade 7 is provided with an air outlet. The material of lamp shade 7 is the aluminum alloy, and the inner wall of lamp shade 7 is equipped with the titanium powder coating that the major component is TiO 2 for in the ultraviolet reflection single-ridge resonant cavity 4 that electrodeless ultraviolet fluorescent tube 1 sent, the titanium powder coating that the major component is TiO 2 can reflect the ultraviolet that exceeds 95%, increases the utilization ratio of ultraviolet on the one hand, on the other hand improves corrosion resistance and the stability of lamp shade 7 inner wall, plays the effect of protection lamp shade 7. The air cooling device 12 is an air blower, and cools the electrodeless ultraviolet lamp tube 1 by blowing air into the lampshade 7 by the air blower, so that the problem that the light power of the electrodeless ultraviolet lamp tube 1 is reduced due to overhigh temperature is avoided.
The microwave source 2 is a solid-state microwave source, the power of the microwave source is adjustable within the range of 0-1000W, and the microwave source 2 feeds microwaves into the single-ridge resonant cavity 4 from the starting end of the single-ridge resonant cavity 4 through the coaxial cable 14, the waveguide coaxial converter and the impedance converter. When the adjustable short-circuit surface 11 is controlled to move along the length direction of the single-ridge resonant cavity 4, the phase of microwaves in the single-ridge resonant cavity 4 can be adjusted, and then the electric field distribution in the single-ridge resonant cavity 4 is adjusted, so that the electric field intensity of most of the space of the disinfection section of the quartz water tube 8 exceeds 10 5 V/m under the condition of starting the microwave source 2. For example, by adjusting the position of the adjustable short-circuit surface 11, the electric field strength of at least 50% of the space in the disinfection section of the quartz tube 8 can be made to exceed 10 5 V/m with the microwave source 2 turned on.
Example 2
In this embodiment, the electric field distribution in the single-ridge resonant cavity of the water disinfection device of embodiment 1 is simulated on the multi-physical field simulation software COMSOL, and whether the electric field distribution in the single-ridge resonant cavity can be changed by adjusting the adjustable short-circuit surface is examined.
According to the structure of the water disinfection device described in embodiment 1, a model of the water disinfection device is built in the COMSOL device, the power of a microwave source is set to be 50W, the microwave frequency is set to be 2.54 GHz, the electric field distribution in the single-ridge resonant cavity is simulated in COMSOL software, and in the simulation process, the electric field distribution in the single-ridge resonant cavity 4 is adjusted by controlling the adjustable short-circuit surface to move along the length direction of the single-ridge resonant cavity. When the distance between the adjustable short-circuit surface and the end of the termination end of the single-ridge resonant cavity is 5 mm, 15 mm, 25 mm and 35 mm, the electric field distribution in the single-ridge resonant cavity is shown in fig. 4-7.
As can be seen from fig. 4 to 7, when the distance between the adjustable short-circuit surface and the end of the termination end of the single-ridge resonant cavity is 5mm, 15mm, 25 mm and 35 mm, the maximum electric field intensity in the single-ridge resonant cavity is 1.44×10 5 V/m、1.64×105 V/m、1.59×105 V/m and 1.69×10 5 V/m respectively, and the electric field intensity in most of the area (at least 50% of the space in the disinfection section of the quartz water tube) in the single-ridge resonant cavity is higher than 10 5 V/m, which means that the electric field distribution in the single-ridge resonant cavity can be adjusted by controlling the adjustable short-circuit surface to move along the length direction of the single-ridge resonant cavity, so that more areas in the single-ridge resonant cavity can have the electric field intensity higher than 10 5 V/m.
Comparative example 1
In this comparative example, a rectangular cavity was established in COMSOL software according to the length, width and height of the single-ridge cavity in example 1, and the power of the microwave source was set to 500W and the microwave frequency was set to 2.54 GHz, and the electric field distribution in the single-ridge cavity was simulated in COMSOL software, and the result is shown in fig. 8. As can be seen from fig. 8, even if the power of the microwave source is set to 10 times that in embodiment 2, the maximum electric field strength in the rectangular resonator of this comparative example is only 5375V/m.
As can be seen from the combination of example 2 and comparative example 1, a higher strength electric field can be generated using the single-ridge resonator of example 1 than the rectangular resonator of comparative example 1. Under the condition that the microwave power is obviously lower, the strength of an electric field generated in the single-ridge resonant cavity is far higher than that of the rectangular resonant cavity. This demonstrates that the water disinfection device provided by the present invention can generate significantly higher electric field strength at relatively lower microwave power, which is advantageous for reducing the input power of the microwave source and reducing the water disinfection energy consumption. The electric field intensity level of most areas in the single-ridge resonant cavity of embodiment 1 has reached the level capable of realizing electroporation effect, and under the condition of the electric field intensity, microorganisms can be directly caused to generate electroporation, and meanwhile, ultraviolet rays generated by microwave excitation electrodeless ultraviolet lamp tubes in the single-ridge resonant cavity can realize ultraviolet disinfection, so that the electroporation and ultraviolet rays can be cooperatively disinfected, and the disinfection effect on water body is enhanced.
Comparative example 2
The structure of the water disinfection device provided in this comparative example is basically the same as that of the water disinfection device in embodiment 1, and the difference is that the single-ridge resonant cavity in embodiment 1 is replaced by a rectangular resonant cavity with the same length, width and height, that is, the top of the rectangular resonant cavity is provided with a strip-shaped gap, the strip-shaped gap is arranged along the length direction of the rectangular resonant cavity, and the arrangement position of the strip-shaped gap is the same as that of the strip-shaped gap on the ridge-shaped resonant cavity in the water disinfection device in embodiment 1.
Example 3
In this embodiment, taking water disinfection by using the water disinfection device described in embodiment 1 as an example, the microwave synchronous dielectric perforation and electrodeless ultraviolet continuous running water disinfection method of the present invention is described in detail, and the steps are as follows:
(1) E.coli and deionized bacteria are used to prepare bacterial liquid with the concentration of about 1.0X10 8 CFU/mL, and the bacterial liquid is used as the water body to be disinfected.
(2) The microwave source and the air cooling device of the microwave synchronous dielectric perforation and electrodeless ultraviolet continuous flow water disinfection device are started, the power of the microwave source is controlled to be 100W, the microwave frequency is controlled to be 2.45 GHz, the electric field intensity of at least 50% of the space of the disinfection section of the quartz water pipe exceeds 10 5 V/m by adjusting the position of an adjustable short road surface (the adjustable circuit is adjusted according to the result of simulating electric field distribution in COMSOL software in the embodiment 2), and the microwave in the single-ridge resonant cavity excites the electrodeless ultraviolet lamp tube to generate ultraviolet rays. The water to be disinfected is continuously introduced into the quartz water pipe through the water inlet pump and continuously discharged through the water outlet, the flow rate of the water in the quartz water pipe is controlled to be 100 mL/min, and when the water flows through the disinfection section of the quartz water pipe, an electric field with the intensity higher than 10 5 V/m and ultraviolet rays in the area where the quartz water pipe is arranged in the single-ridge resonant cavity produce electroporation-ultraviolet ray synergistic disinfection effects on the water. In the water disinfection process, the temperature of the electrodeless ultraviolet lamp tube is kept below 45 ℃ by controlling the air quantity of the air cooling device.
And when the flow rate of the water body in the quartz water pipe is stable, sampling from the water outlet of the quartz water pipe to measure the concentration of the escherichia coli, and calculating the sterilization efficiency, wherein the result is 99.999 percent (5 logarithmic inactivation rates).
Example 4
In this embodiment, taking water disinfection by using the water disinfection device described in embodiment 1 as an example, the microwave synchronous dielectric perforation and electrodeless ultraviolet continuous running water disinfection method of the present invention is described in detail, and the steps are as follows:
(1) Taking secondary effluent of a sewage treatment plant as a water body to be disinfected, wherein the concentration of fecal coliform in the secondary effluent of the sewage treatment plant is 3.0X10 4 CFU/mL.
(2) The microwave source and the air cooling device of the microwave synchronous dielectric perforation and electrodeless ultraviolet continuous flow water disinfection device are started, the power of the microwave source is controlled to be 200W, the microwave frequency is controlled to be 2.45 GHz, the electric field intensity of at least 50% of the space of the disinfection section of the quartz water pipe exceeds 10 5 V/m by adjusting the position of the adjustable short road surface (the adjustable circuit is adjusted according to the result of simulating electric field distribution in COMSOL software in the embodiment 2), and the microwave in the single-ridge resonant cavity excites the electrodeless ultraviolet lamp tube to generate ultraviolet rays. And continuously introducing the water body to be disinfected into the quartz water pipe through the water inlet pump and continuously discharging the water body from the water outlet, controlling the flow rate of the water body in the quartz water pipe to be 150 mL/min, and generating electroporation-ultraviolet synergistic disinfection effect on the water body by an electric field and ultraviolet rays with the intensity higher than 10 5 V/m in the area where the quartz water pipe is arranged in the single-ridge resonant cavity when the water body flows through the disinfection section of the quartz water pipe. In the water disinfection process, the temperature of the electrodeless ultraviolet lamp tube is kept below 45 ℃ by controlling the air quantity of the air cooling device.
And when the flow velocity of the water body in the quartz water pipe is stable, sampling from the water outlet of the quartz water pipe to measure the concentration of the fecal coliform, and finding that the fecal coliform is not detected in the water.
Comparative example 3
In this comparative example, the water disinfection treatment was performed using the water disinfection apparatus of comparative example 2, and the procedure was as follows:
(1) The secondary effluent of a sewage treatment plant is taken as a water body to be disinfected, and the concentration of fecal coliform in the secondary effluent of the sewage treatment plant is 3.0X10 4 CFU/mL (the same as the water body to be disinfected adopted in the embodiment 4).
(2) The microwave source and the air cooling device of the water sterilizing device in comparative example 1 are started, the power of the microwave source is controlled to be 500W, the microwave frequency is controlled to be 2.45 GHz, the water to be sterilized is continuously introduced into the quartz water pipe through the water inlet pump and is continuously discharged from the water outlet, and the flow rate of the water in the quartz water pipe is controlled to be 150 mL/min. In the water disinfection process, the temperature of the electrodeless ultraviolet lamp tube is kept below 45 ℃ by controlling the air quantity of the air cooling device.
After the flow rate of the water body in the quartz water pipe is stable, sampling from the outlet of the quartz water pipe to measure the concentration of the fecal coliform, and finding that the concentration of the fecal coliform in the water is unchanged and is still 3.0X10 4 CFU/mL.
Comparative example 4
In this comparative example, the water disinfection treatment was performed using the water disinfection apparatus of comparative example 2, and considering that the sterilizing effect was not generated on fecal coliform in the water body under the experimental condition of comparative example 3, the present comparative example examined the water disinfection effect under the condition of reducing the inflow rate, the steps were as follows:
(1) The secondary effluent of a sewage treatment plant is taken as a water body to be disinfected, and the concentration of fecal coliform in the secondary effluent of the sewage treatment plant is 3.0X10 4 CFU/mL (the same as the water body to be disinfected adopted in the embodiment 4).
(2) The microwave source and the air cooling device of the water disinfection device in comparative example 1 are started, the power of the microwave source is controlled to be 500W, the microwave frequency is controlled to be 2.45 GHz, the water to be disinfected is continuously introduced into the quartz water pipe through the water inlet pump and is continuously discharged from the water outlet, and the flow rate of the water in the quartz water pipe is controlled to be 100 mL/min. In the water disinfection process, the temperature of the electrodeless ultraviolet lamp tube is kept below 45 ℃ by controlling the air quantity of the air cooling device.
After the flow rate of the water body in the quartz water pipe is stable, sampling from the outlet of the quartz water pipe to measure the concentration of the fecal coliform, and finding that the concentration of the fecal coliform in the water is unchanged and is still 3.0X10 4 CFU/mL.
Comparative examples 3 and 4 failed to produce an effective bactericidal effect against E.faecalis in a body of water, because the electric field strength produced in the rectangular cavity of the water disinfection apparatus was too low to reach a level at which electroporation effect could be produced, but only a single ultraviolet disinfection effect was produced, but the single ultraviolet disinfection had problems of limited disinfection effect and easy light reactivation. Comparative example 4 still failed to achieve effective sterilization after the inflow rate was reduced based on comparative example 3. It is clear from the combination of examples 4 and comparative examples 3 to 4 that the method of the present invention produces significantly better water disinfection effect due to the synergistic electroporation-ultraviolet disinfection effect compared to comparative examples 3 to 4.
Example 5
In this embodiment, the microwave synchronous dielectric perforation and electrodeless ultraviolet continuous running water disinfection device and method of the invention are provided.
The water sterilizing apparatus in this embodiment is substantially the same as that of embodiment 1 except that the ratio of the width of the rectangular ridge to the width of the single-ridge cavity is 0.5:1, and the ratio of the height of the rectangular ridge 6 to the height of the single-ridge cavity 4 is 0.4:1. The ratio of the width of the strip-shaped gap to the diameter of the electrodeless ultraviolet lamp tube is 0.4:1. The inner diameter of the quartz water pipe is 2 cm, and the inner diameter of the disinfection section of the quartz water pipe accounts for 80% of the width of the rectangular ridge. The operation of continuous flow water disinfection by adopting the water disinfection device is as follows:
(1) E.coli and deionized bacteria are used to prepare bacterial liquid with the concentration of about 1.0X10 7 CFU/mL, and the bacterial liquid is used as the water body to be disinfected.
(2) The microwave source and the air cooling device of the microwave synchronous dielectric perforation and electrodeless ultraviolet continuous flow water disinfection device are started, the power of the microwave source is controlled to be 300W, the microwave frequency is controlled to be 2.45 GHz, the electric field intensity of at least 50% of the space of the disinfection section of the quartz water pipe exceeds 10 5 V/m by adjusting the position of an adjustable short road surface (by adopting the simulation electric field distribution in COMSOL software, an adjustable circuit device is adjusted according to the simulation result), and the microwave in the single-ridge resonant cavity excites the electrodeless ultraviolet lamp tube to generate ultraviolet rays. And continuously introducing the water body to be disinfected into the quartz water pipe through the water inlet pump and continuously discharging the water body from the water outlet, controlling the flow rate of the water body in the quartz water pipe to be 100 mL/min, and generating electroporation-ultraviolet synergistic disinfection effect on the water body by an electric field and ultraviolet rays with the intensity higher than 10 5 V/m in the area where the quartz water pipe is arranged in the single-ridge resonant cavity when the water body flows through the disinfection section of the quartz water pipe. In the water disinfection process, the temperature of the electrodeless ultraviolet lamp tube is kept below 45 ℃ by controlling the air quantity of the air cooling device.
And when the flow velocity of the water body in the quartz water pipe is stable, sampling from the water outlet of the quartz water pipe to measure the concentration of the escherichia coli, and finding that the escherichia coli is not detected in the water.
Example 6
In this embodiment, the microwave synchronous dielectric perforation and electrodeless ultraviolet continuous running water disinfection device and method of the invention are provided.
The water sterilizing apparatus in this embodiment is substantially the same as that of embodiment 1 except that the sterilizing section of the quartz water tube is a serpentine tube having an inner diameter of 5mm and a spiral diameter of the serpentine tube (a dimension of the widest portion of the spiral of the serpentine tube) and a width of the rectangular ridge of the single-ridge resonant cavity. The operation of continuous flow water disinfection by adopting the water disinfection device is as follows:
(1) E.coli and deionized bacteria are used to prepare bacterial liquid with the concentration of about 1.0X10 8 CFU/mL, and the bacterial liquid is used as the water body to be disinfected.
(2) The microwave source and the air cooling device of the microwave synchronous dielectric perforation and electrodeless ultraviolet continuous flow water disinfection device are started, the power of the microwave source is controlled to be 500W, the microwave frequency is controlled to be 2.45 GHz, the electric field intensity of at least 50% of the space of the disinfection section of the quartz water pipe exceeds 10 5 V/m by adjusting the position of an adjustable short road surface (by adopting the simulation electric field distribution in COMSOL software, an adjustable circuit device is adjusted according to the simulation result), and meanwhile, the microwave in the single-ridge resonant cavity excites the electrodeless ultraviolet lamp tube to generate ultraviolet rays. And continuously introducing the water body to be disinfected into the quartz water pipe through the water inlet pump and continuously discharging the water body from the water outlet, controlling the flow rate of the water body in the quartz water pipe to be 200 mL/min, and generating electroporation-ultraviolet synergistic disinfection effect on the water body by an electric field and ultraviolet rays with the intensity higher than 10 5 V/m in the area where the quartz water pipe is arranged in the single-ridge resonant cavity when the water body flows through the disinfection section of the quartz water pipe. In the water disinfection process, the temperature of the electrodeless ultraviolet lamp tube is kept below 45 ℃ by controlling the air quantity of the air cooling device.
And when the flow rate of the water body in the quartz water pipe is stable, sampling from the water outlet of the quartz water pipe to measure the concentration of the escherichia coli, and calculating the sterilization efficiency, wherein the result is 99.999 percent (5 logarithmic inactivation rates).
Claims (10)
1. The microwave synchronous dielectric perforation and electrodeless ultraviolet continuous running water disinfection device comprises an electrodeless ultraviolet lamp tube (1), a microwave source (2) and an air cooling device (12), and is characterized by also comprising a single-ridge waveguide (3), a lampshade (7) and a quartz water pipe (8);
The single-ridge waveguide (3) comprises a waveguide coaxial converter, an impedance converter, a single-ridge resonant cavity (4) and an adjustable short-circuit surface (11), wherein a rectangular ridge (6) protruding upwards is arranged at the bottom of the single-ridge resonant cavity (4), a strip-shaped gap (5) is formed in the top of the single-ridge resonant cavity (4), the strip-shaped gap (5) and the rectangular ridge (6) are all arranged along the length direction of the single-ridge resonant cavity (4), and the adjustable short-circuit surface (11) is arranged at the termination end of the single-ridge resonant cavity (4);
The electrodeless ultraviolet lamp tube (1) is arranged along the strip-shaped gap (5), the quartz water tube (8) penetrates through the single-ridge resonant cavity (4), the water inlet (9) and the water outlet (10) of the quartz water tube (8) are positioned outside the single-ridge resonant cavity (4), the part of the quartz water tube (8) positioned in the single-ridge resonant cavity (4) is marked as a disinfection section, the disinfection section is positioned above the rectangular ridge (6) and positioned in the irradiation range of the electrodeless ultraviolet lamp tube (1), the lampshade (7) is covered outside the electrodeless ultraviolet lamp tube (1) to enable the electrodeless ultraviolet lamp tube (1) to be positioned in a space formed by the lampshade (7) and the single-ridge resonant cavity (4), one end of the lampshade (7) is connected with the air cooling device (12), and the other end of the lampshade (7) is provided with an air outlet;
the microwave source (2) feeds microwaves into the single-ridge resonant cavity (4) through a coaxial cable (14) via a waveguide coaxial converter and an impedance transformer.
2. The microwave synchronous dielectric perforation and electrodeless ultraviolet continuous flow water sterilization device as claimed in claim 1, wherein the sterilization section of the quartz water pipe (8) is positioned right above the rectangular ridge (6).
3. The microwave synchronous dielectric perforation and electrodeless ultraviolet continuous flow water sterilization device as claimed in claim 2, wherein the electric field intensity of at least 50% of the space of the sterilization section of the quartz water tube (8) exceeds 10 5 V/m by adjusting the adjustable short-circuit surface (11) under the condition of starting the microwave source (2).
4. The microwave synchronous dielectric perforation and electrodeless ultraviolet continuous flow water disinfection device according to claim 1, wherein the ratio of the width of the strip gap (5) to the diameter of the electrodeless ultraviolet lamp tube (1) is (0.4-1.2): 1, and the electrodeless ultraviolet lamp tube (1) is positioned outside the single-ridge resonant cavity (4) and is partially embedded into the strip gap (5).
5. The microwave synchronous dielectric perforation and electrodeless ultraviolet continuous flow water sterilization device according to claim 1, wherein the ratio of the width of the rectangular ridge (6) to the width of the single ridge resonant cavity (4) is (0.3-0.5): 1, and the ratio of the height of the rectangular ridge (6) to the height of the single ridge resonant cavity (4) is (0.2-0.4): 1.
6. The microwave synchronous dielectric perforation and electrodeless ultraviolet continuous running water disinfection device as claimed in any one of claims 1 to 5, wherein the disinfection section of the quartz water tube (8) is a straight tube or a serpentine tube.
7. The microwave synchronous dielectric perforation and electrodeless ultraviolet continuous flow water disinfection device as claimed in any one of claims 1 to 5, wherein the inner wall of the lamp shade (7) is provided with an ultraviolet reflecting material coating.
8. A method for disinfecting continuous running water by microwave synchronous dielectric perforation and electrodeless ultraviolet rays, which is characterized by using the device for disinfecting continuous running water by microwave synchronous dielectric perforation and electrodeless ultraviolet rays according to any one of claims 1 to 7, and comprises the following steps:
The microwave synchronous dielectric perforation and electrodeless ultraviolet continuous flow water disinfection device is started, a microwave source (2) and an air cooling device (12) of the microwave synchronous dielectric perforation and electrodeless ultraviolet continuous flow water disinfection device are started, electric field distribution in a single-ridge resonant cavity (4) is regulated through an adjustable short-circuit surface (11), the electric field intensity of at least 50% of a space of a disinfection section of a quartz water pipe (8) exceeds 10 5 V/m, microwaves in the single-ridge resonant cavity (4) excite the electrodeless ultraviolet lamp (1) to generate ultraviolet rays, water to be disinfected is continuously introduced into the quartz water pipe (8) through a water inlet (9) and is continuously discharged through a water outlet (10), and when the water flows through the disinfection section of the quartz water pipe (8), electric field with intensity higher than 10 5 V/m in the area of the quartz water pipe (8) is arranged in the single-ridge resonant cavity (4), and the ultraviolet rays generate electroporation-ultraviolet synergistic disinfection effect on the water.
9. The method for disinfecting continuous running water by microwave synchronous dielectric perforation and electrodeless ultraviolet rays according to claim 8, wherein the flow rate of the water body in the quartz water pipe (8) is controlled to be not more than 200 mL/min.
10. The method for disinfecting continuous running water by microwave synchronous dielectric perforation and electrodeless ultraviolet rays according to claim 8 or 9, wherein the temperature of the electrodeless ultraviolet lamp tube (1) is kept below 45 ℃ in the water disinfecting process by adjusting the air quantity of the air cooling device (12).
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| CN1549300A (en) * | 2003-05-19 | 2004-11-24 | 电子科技大学 | A microwave ultraviolet light source |
| US8743922B2 (en) * | 2011-10-21 | 2014-06-03 | Sharp Kabushiki Kaisha | Ultraviolet laser |
| CN102698300B (en) * | 2012-05-31 | 2014-04-09 | 电子科技大学 | Microwave resonator for sterilizing liquid substance at low temperature |
| WO2018026008A1 (en) * | 2016-08-05 | 2018-02-08 | 株式会社トクヤマ | Ultraviolet sterilization method and ultraviolet sterilization device |
| CN206255943U (en) * | 2016-11-14 | 2017-06-16 | 深圳市高斯宝环境技术有限公司 | Treatment device for circulating aquaculture water |
| CN110261684B (en) * | 2019-05-07 | 2022-04-05 | 电子科技大学 | A double ridge waveguide method liquid crystal dielectric testing device |
| CN115390181A (en) * | 2022-07-28 | 2022-11-25 | 四川大学 | A long-wavelength mid-infrared on-chip integrated optical parameter conversion device |
| CN119191456A (en) * | 2024-11-26 | 2024-12-27 | 四川大学 | Ultraviolet-ozone water disinfection device and method for cooling lamp tubes and synchronously generating ozone |
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| CN1471366A (en) * | 2000-10-27 | 2004-01-28 | APIT�ɷ�����˾ | Method and device for liquid sterilization |
| CN108439531A (en) * | 2018-03-09 | 2018-08-24 | 王庆凯 | A kind of microwave fluid removes algae sterilizer |
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